Adsorption orientation of 8-azaadenine on silver nanoparticles determined by SERS and DFT Harroun, Scott G. ; Zhang, Yaoting ; Chen, Tzu-Heng ; Hsu, Chia-Lun ; Chang, Huan-Tsung Abstract Publication: Journal of Raman Spectroscopy Pub Date: February 2018 DOI: 10.1002/jrs.5272 Bibcode: 2018JRSp...49..376H